E-Maxx Weight Question

I've got a 3908 (brushless edition) e-maxx, that now has several upgrades, such as aluminum bulkheads, rpm true tack a arms, rpm towers, etc..

The truck is now heaver than before, and the big bore shocks sit much lower now. I also have noticed that it bottoms out easier than before. DOes anyone have recommendations on better shocks, or solutions? I have checked the shock oil, and have used more "spacers" on the springs to help them push up more.

that search produced very confusing results, including posts on other sites that traxxas no longer sells different springs for the big bore shocks. I saw some folks referencing use of losi shocks, but no specifics of which ones.